Citation: Hammond, R. P.; Barbier, J. (1998). Monoclinic and hexagonal nepheline structures of (Na3/4K1/4)AlGeO4 Note: hexagonal nepheline. Acta Crystallographica, Section B, 54, pp. 211-220.
Formula: Al3.88 Ge4.12 K0.76 Na3.12 O16
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al8 Ge16 O36 (Al2 Ge4 O9)
Multiplicity: 1